8021q: publish vlan_devices_arrays entries with acquire/release

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Replace the smp_wmb()/smp_rmb() barrier pair with
smp_store_release()/smp_load_acquire() on
vg->vlan_devices_arrays[pidx][vidx].

vlan_group_prealloc_vid() publishes the array pointer via release;
__vlan_group_get_device() acquires it before accessing the array,
ensuring the allocated entries are visible.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Jinjie Ruan 2026-09-02 15:33:34 +08:00 • committed by Jakub Kicinski

parent 2e9ff7bb66

commit d199b0d0bb

2 changed files with 5 additions and 9 deletions

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6

net/8021q/vlan.c

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8

net/8021q/vlan.h

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